Transmission Control for Fast Recovery of Rateless Codes

Luby Transform (LT) codes are more important in communication applications due to the characteristics of fast encoding/decoding process, and low complexity. However, LT codes are optimal only when the number of input symbols is close to infinity. Some researches modified the degree distribution of L...

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Bibliographic Details
Published inInternational journal of advanced computer science & applications Vol. 4; no. 3
Main Authors Huang, Jau-Wu, Yang, Kai-Chao, Hsieh, Han-Yu, Wang, Jia-Shung
Format Journal Article
LanguageEnglish
Published West Yorkshire Science and Information (SAI) Organization Limited 01.01.2013
Subjects
Algorithms
Coding
Encoding-Decoding
Symbols
Online AccessGet full text
ISSN2158-107X
2156-5570
2156-5570
DOI10.14569/IJACSA.2013.040305

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Summary:Luby Transform (LT) codes are more important in communication applications due to the characteristics of fast encoding/decoding process, and low complexity. However, LT codes are optimal only when the number of input symbols is close to infinity. Some researches modified the degree distribution of LT codes to make LT codes suitable for short symbol length. In this article, we propose an optimal coding algorithm to recover all of the encoded symbols for LT codes quickly. The proposed algorithm observes the coding status of each client and increases the coding performance by changing the transmission sequence of low-degree and high-degree encoding packets. Simulation results show that the resulting decoding overhead of our algorithm are lower than the traditional LT codes, and our algorithm is very appropriate to server various clients in the broadcasting channel environment.
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ISSN:2158-107X
2156-5570
2156-5570
DOI:10.14569/IJACSA.2013.040305